In our country, the system of popular representation forms the basis of democracy.

He was chosen to represent us at the conference.

I am studying Korean language.

My grandmother needs home nursing.

She is an expert in nursing.

This software has compatibility with other programs.

Japanese-made Chinese-character-based words play an important role in creating unique Japanese expressions.

This old radio uses a pentode.

This new software maintains upward compatibility with the old version.

He is suffering from aphasia as a sequelae of stroke.